– Lat/Long: 48.71° N 121.99° W
South Twin Sister
Weather Forecast, United StatesIssued: 10 am Fri 14 Aug Local TimeUpdates in: hr min sUpdate imminent
Issued: 10 am Fri 14 Aug Local Time
Updates in:
Update imminent hr min s
Issued: 10 am Fri 14 Aug Local Time
Updates in:
Update imminent hr min s
3 South Twin Sister Elevations: 3 Forecast Elevations: Days 1–3 Weather SummaryLight rain (total 3mm), mostly falling on Fri afternoon. Warm (max 25°C on Fri afternoon, min 15°C on Sat night). Wind will be generally light. | Days 4–6 Weather SummaryMostly dry. Warm (max 24°C on Mon afternoon, min 16°C on Mon night). Wind will be generally light. | |||||||||||||||||
Friday 14 | Saturday 15 | Sunday 16 | Monday 17 | Tuesday 18 | Wednesday 19 | |||||||||||||
AM | PM | night | AM | PM | night | AM | PM | night | AM | PM | night | AM | PM | night | AM | PM | night | |
 |  |  |  | |  |  | |  |  | |  | | | | | | | |
rain shwrs | risk tstorm | risk tstorm | some clouds | some clouds | rain shwrs | cloudy | rain shwrs | clear | clear | some clouds | some clouds | some clouds | clear | clear | some clouds | clear | clear | |
Cloud base (m) | 3700 | 3300 | 3400 | 8800 | 3350 | 2250 | 6000 | 8250 | 2200 | 6750 | ||||||||
km/h | ||||||||||||||||||
 |  |  |  |  |  | |||||||||||||
 cm | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
mm | 0.8 | 1.1 | 0.1 | — | — | 0.4 | — | 0.2 | — | — | — | — | — | — | — | — | — | — |
max °C | 21 | 25 | 20 | 21 | 23 | 19 | 20 | 23 | 19 | 22 | 24 | 20 | 20 | 23 | 19 | 20 | 24 | 20 |
min °C | 18 | 24 | 16 | 18 | 23 | 15 | 17 | 23 | 16 | 19 | 23 | 16 | 17 | 22 | 16 | 18 | 23 | 18 |
chill °C | 18 | 24 | 16 | 18 | 23 | 15 | 17 | 23 | 16 | 19 | 23 | 16 | 17 | 22 | 16 | 18 | 23 | 18 |
Freezing level m | 3400 | 3500 | 3400 | 3450 | 3650 | 3650 | 3650 | 3800 | 3950 | 4050 | 4100 | 3950 | 4250 | 4550 | 4550 | 4450 | 4400 | 4450 |
 | 5:58 | — | — | 6:00 | — | — | 6:01 | — | — | 6:03 | — | — | 6:03 | — | — | 6:05 | — | — |
 | — | — | 8:24 | — | — | 8:22 | — | — | 8:21 | — | — | 8:19 | — | — | 8:16 | — | — | 8:15 |
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South Twin Sister Weather (Days 0-3):
The weather forecast for South Twin Sister is: Light rain (total 3mm), mostly falling on Fri afternoon. Warm (max 25°C on Fri afternoon, min 15°C on Sat night). Wind will be generally light.
South Twin Sister Weather (Days 3-6):
Mostly dry. Warm (max 24°C on Mon afternoon, min 16°C on Mon night). Wind will be generally light.
This table gives the weather forecast for South Twin Sister at the specific elevation of 500 m. Our advanced weather models allow us to provide distinct weather forecasts for several elevations of South Twin Sister. To see the weather forecasts for the other elevations, use the tab navigation above the table. For a wider overview of the weather, consult the Weather Map of Washington.